let arr = [{name: 'john', age:17}, {name: 'Doe', age: 21}];
//let dropDownHumanOptions = ['All', ...arr.name, 'Cancel']
//let dropDownHumanOptions = ['All', ...{arr.name}, 'Cancel']
//Expected: let dropDownHumanOptions = ['All', 'john', 'Doe', 'Cancel']
我想知道是否有任何类似的语法,我们可以只提取一个字段,并通过使用扩展语法组合在另一个数组的中间?
发布于 2018-08-17 15:18:34
您需要扩展映射的名称。
var array = [{name: 'john', age:17}, {name: 'Doe', age: 21}],
dropDownHumanOptions = ['All', ...array.map(({ name }) => name), 'Cancel'];
console.log(dropDownHumanOptions);
https://stackoverflow.com/questions/51890195
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